Comments:АПиПЯЯ 288, Miller-Street 1975, 108ff (with a somewhat different distribution of roots). MKor. kằr-hằi- < *kǝ̀r-hằi- through assimilation (?). The root tends to contaminate with a number of similar roots: see *k`ĭ̀rka, *k`ĭ̀régV, *kìro.